Affiliation:
1. University of Science and Technology of China
Abstract
The weak measurement wavefront sensor detects the phase gradient of light like the Shack–Hartmann sensor does. However, the use of one thin birefringent crystal to displace light beams results in a wavelength-dependent phase difference between the two polarization components, which limits the practical application. Use of a Savart plate, which consists of two such crystals, can compensate for the phase difference and realize achromatic wavefront sensing when combined with an achromatic retarder. We discuss the spatial resolution of the sensor and experimentally reconstruct a wavefront modulated by a pattern. Then we obtain the Zernike coefficients with three different wavelengths before and after modulation. Our work makes this new wavefront sensor more applicable to actual tasks like biomedical imaging.
Funder
Innovation Program for Quantum Science and Technology
National Natural Science Foundation of China
Anhui Initiative in Quantum Information Technologies
Fundamental Research Funds for the Central Universities
Subject
Atomic and Molecular Physics, and Optics
Cited by
5 articles.
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